CVE-2025-30187 Affecting dnsdist package, versions <2.0.1-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-DNSDIST-12905478
- published19 Sept 2025
- disclosed18 Sept 2025
Introduced: 18 Sep 2025
CVE-2025-30187 (opens in a new tab)How to fix?
Upgrade Debian:14 dnsdist to version 2.0.1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dnsdist package and not the dnsdist package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources.